Device and method for relieving noise caused by chimney effect of elevator of high-rise building

Abstract

The invention discloses a device and method for relieving noise caused by the chimney effect of a high-rise building elevator, and relates to the field of building science and elevator electromechanics, the device comprises an airtight gasket and a door plate windshield, the airtight gasket is detachably arranged on the gap face of the closed side of two landing door plates, and the door plate windshield is detachably arranged on the airtight gasket. The door plate windshield is arranged in a gap between an elevator hall door frame and a door plate, and the door plate windshield is longitudinally installed on a front panel, away from the closed side, of the door plate. The noise problem caused by the chimney effect of a high-rise building elevator can be relieved, and damage to clamped users can be reduced.

Description

Technical Field

[0001] The invention belongs to the field of building science and elevator electromechanical, and in particular relates to a device and method for alleviating noise caused by the chimney effect of elevators in high-rise buildings. Background Art

[0002] The "chimney effect" of super high-rise buildings refers to the thermal pressure caused by the difference in air density due to the temperature difference between the indoor and outdoor temperature of the building, which causes outdoor air to penetrate into the indoor space through gaps such as curtain wall doors and windows, and rise or fall along vertical shafts such as elevator shafts inside the building, forming air infiltration phenomena with varying degrees of influence. Especially in winter, the large temperature difference between indoor and outdoor leads to a strong chimney effect, which causes the infiltrated air to be drawn from the bottom floor to the top floor through the elevator shaft. The main entrance for airflow to enter the elevator shaft of a high-rise building is the hall door of each elevator on the ground floor. When the elevator hall door is closed, the airflow mainly flows into the elevator shaft through the gap between the hall door and the gap between it and the shaft wall. Since these gaps are small, they may cause the airflow velocity to be too fast, thereby generating large airflow noise. On-site measurements have observed that the noise volume can reach more than 90dB, and may last for a long time, seriously affecting the comfort of elevator users and building users near the elevator shaft.

[0003] At present, the mitigation measures for the chimney effect in high-rise buildings have mainly focused on solving the problem of elevator door opening and closing and ensuring the normal operation of the elevator system. Little attention has been paid to the noise problem caused by the chimney effect. However, according to the actual observations of on-site investigations, serious noise problems will also cause trouble to building users, and their impact is no less than the operation failure of the elevator system.

[0004] Therefore, it is of great significance to design a device and method that can alleviate the noise problem caused by the chimney effect of high-rise building elevators. Summary of the invention

[0005] In view of this, the present invention provides a device and method for alleviating the noise caused by the chimney effect of elevators in high-rise buildings. The present invention can add airtight gaskets and wind-blocking materials to the elevator hall doors to block the airflow flowing along the gaps of the elevator hall doors, or slow down the airflow speed, so as to alleviate the airflow noise caused by the strong chimney effect.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A device for alleviating noise caused by the chimney effect of elevators in high-rise buildings, comprising an airtight gasket and a door panel windscreen, wherein the airtight gasket is detachably arranged on a gap surface on a closing side of two hall doors, the door panel windscreen is arranged at a gap between an elevator hall door frame and a door panel, and the door panel windscreen is longitudinally mounted on a front panel of the door panel away from the closing side.

[0008] Furthermore, it also includes a door frame windshield, and the door frame windshield is arranged on both sides and the top of the door frame.

[0009] Furthermore, the door panel windshield and the door frame windshield are both brush windshields made of chemical fiber materials.

[0010] Furthermore, an air cavity is provided inside the airtight gasket, a circular arc surface is provided on the abutting side of the airtight gasket, and a clamping protrusion is provided on the clamping side of the airtight gasket.

[0011] Furthermore, it also includes a gasket slot, which is arranged on the gap surface of the hall door, and the airtight gasket is clamped in the gasket slot through a clamping protrusion.

[0012] Furthermore, a detachable slot wall is provided on one side of the gasket slot to facilitate the installation of the airtight gasket, and a disassembly switch is provided at the bottom end of the gasket slot.

[0013] A method for alleviating noise caused by the chimney effect of elevators in high-rise buildings, comprising the following steps:

[0014] S01. Install a gasket slot on the gap surface of the two elevator hall doors on the closed side, and clamp the airtight gasket in the gasket slot, so that the airtight gaskets can be squeezed and deformed when the elevator hall door is closed, blocking the original gap in the middle of the hall door and enhancing airtightness;

[0015] S02. Install a door panel windshield screen longitudinally on the front panel of the hall door panel away from the closing side to reduce the flow rate and flow velocity of the airflow;

[0016] S03. Door frame windshields are installed on both sides and the top of the door frame. The door frame windshields can cooperate with the door panel windshields to form a double barrier.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention provides an airtight gasket, which is squeezed and deformed when the elevator hall door is closed, and can effectively block the original gap in the middle of the hall door, thereby enhancing airtightness; the air cavity inside the airtight gasket can increase the flexibility of the airtight gasket, so that the amount of deformation when it is squeezed is larger, which can improve its sealing effect on the one hand, and can also play a buffering role in the possible accident of the elevator door pinching the user on the other hand, thereby reducing the damage to the pinched user;

[0019] 2. The present invention facilitates the disassembly and assembly of the gasket by setting the gasket slot. If the gasket needs to be cleaned or is aged or damaged, the removable slot wall can be disassembled through the disassembly switch, and then the gasket can be taken out for cleaning or replacement. The installation process is simple to operate, which is convenient for modification on the original elevator hall door, and the subsequent maintenance work is also relatively convenient;

[0020] 3. The door panel windshield of the present invention is made of brushes made of chemical fiber materials, which can effectively reduce the air flow rate and flow rate while ensuring that it will not affect the normal operation of the elevator door. It and the door frame windshield can form a double barrier, which can effectively reduce the airflow flowing through the gap between the door frame and the door panel when the elevator hall door is closed, thereby alleviating the problem of airflow noise caused by the chimney effect around the elevator hall door of high-rise buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the installation position of the airtight gasket of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation of the gasket slot of the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle;

[0024] Figure 4 A top view of the center seam and door frame of the elevator door of the present invention;

[0025] Figure 5 This is a schematic diagram of the side door gap of the elevator hall door of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the cross-section of the side door seam of the elevator hall door of the present invention.

[0027] In the figure: 1-door panel; 2-airtight gasket; 3-door frame windshield; 4-elevator door frame; 5-door panel windshield; 6-air cavity; 7-gasket slot; 8-fixing screw; 9-disassembly switch; 10-removable slot wall; 11-compression spring; 12-locating pin. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "horizontal", "inner", "outer", "one side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a circuit connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-6 As shown, this embodiment discloses a device for alleviating noise caused by the chimney effect of elevators in high-rise buildings, comprising an airtight gasket 2, a door panel windshield 5 and a door frame windshield 3.

[0032] The airtight gasket 2 is detachably clamped on the gap surface on one side of the two hall doors being closed, an air cavity 6 is arranged inside the airtight gasket 2, an arc surface is arranged on the side where the airtight gasket 2 abuts against each other, and a clamping protrusion is arranged on the clamping side of the airtight gasket 2. The arrangement of the airtight gasket 2 causes mutual squeezing and deformation when the elevator hall door is closed, which can effectively block the original gap in the middle seam of the hall door and enhance the airtightness; the air cavity 6 inside the airtight gasket 2 can increase the flexibility of the airtight gasket 2, so that the deformation amount when it is squeezed is larger, which can improve its sealing effect on the one hand, and play a buffering role in possible accidents of elevator doors pinching users on the other hand, thereby reducing the damage to the pinched users.

[0033] As a preferred embodiment of the present invention, the airtight gasket 2 is installed through the gasket slot 7, the gasket slot 7 is installed on the gap surface of the hall door panel 1 through the fixing screws 8, and the airtight gasket 2 is clamped in the gasket slot 7 through the clamping protrusion.

[0034] As a preferred embodiment of the present invention, a removable slot wall 10 is provided on one side of the gasket slot 7 for facilitating the installation of the airtight gasket 2. A disassembly switch 9 is provided at the bottom end of the gasket slot 7. Specifically, a positioning hole is provided on the removable slot wall 10. The removable switch 9 includes a compression spring 11 and a positioning pin 12. The gasket slot 7 is provided with a mounting hole. The positioning pin 12 is slidably limited in the mounting hole. The compression spring 11 surrounds the surface of the positioning pin 12 and is in a compressed state. The positioning pin 12 is pushed inward. The positioning pin 12 passes through the positioning hole to fix the removable slot wall 10 in the gasket slot 7. When the airtight gasket 2 needs to be installed, the removable slot wall 10 can be removed by pulling the positioning pin 12. After the gasket slot 7 is placed in place, the positioning pin 12 is pulled to install the removable slot wall 10. The positioning pin is released. The positioning pin 12 is penetrated into the positioning hole under the action of the compression spring 11 to fix it.

[0035] If the airtight gasket 2 needs to be cleaned or has problems such as aging and damage, the removable slot wall 10 can be removed by removing the switch 9, and then the airtight gasket 2 can be taken out for cleaning or replacement. The installation process is simple to operate, easy to modify on the original elevator hall door, and the subsequent maintenance work is also relatively convenient.

[0036] The door panel windshield 5 and the door frame windshield 3 are both brush windshields made of chemical fiber materials, which can effectively reduce the airflow rate and velocity while ensuring that the normal operation of the elevator door is not affected. Specifically, the door panel windshield 5 is arranged at the gap between the elevator door frame 4 and the door panel 1, and the door panel windshield 5 is longitudinally installed on the front panel of the door panel 1 away from the closing side, and the door frame windshield 3 is arranged on both sides and the top of the elevator door frame 4. The door panel windshield 5 and the door frame windshield 3 form a double barrier, which can effectively reduce the airflow flowing through the gap between the elevator door frame 4 and the door panel 1 when the elevator hall door is closed, thereby alleviating the problem of airflow noise caused by the chimney effect around the elevator hall door of high-rise buildings.

[0037] Example 2

[0038] This embodiment discloses a method for alleviating noise caused by the chimney effect of elevators in high-rise buildings, comprising the following steps:

[0039] S01. Install a gasket slot 7 on the gap surface of the two elevator hall doors on the closed side, and clamp the airtight gasket 2 in the gasket slot 7, so that the airtight gasket 2 can be squeezed and deformed when the elevator hall door is closed, blocking the original gap in the middle of the hall door and enhancing air tightness;

[0040] S02. The front panel of the hall door panel 1 is away from the closed side and the door panel windshield 5 is installed longitudinally to reduce the flow rate and flow rate of the air flow;

[0041] S03. Install door frame windshield screens 3 on both sides and the top of the door frame. The door frame windshield screen 3 can cooperate with the door panel windshield screen 5 to form a double barrier.

[0042] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A device for alleviating noise caused by the chimney effect of elevators in high-rise buildings, characterized in that: It includes an airtight gasket and a door panel windshield. The airtight gasket is detachably arranged on the gap surface on the closing side of the two hall door panels. The door panel windshield is arranged at the gap between the elevator hall door frame and the door panel. The door panel windshield is longitudinally installed on the front panel of the door panel away from the closing side.

2. A device for alleviating noise caused by the chimney effect of elevators in high-rise buildings according to claim 1, characterized in that: It also includes a door frame windshield, which is arranged on both sides and the top of the door frame.

3. The device for alleviating noise caused by the chimney effect of elevators in high-rise buildings according to claim 2, characterized in that: The door panel windshield and the door frame windshield are both brush windshields made of chemical fiber materials.

4. The device for alleviating noise caused by the chimney effect of elevators in high-rise buildings according to claim 1, characterized in that: An air cavity is arranged inside the airtight gasket, a circular arc surface is arranged on the abutting side of the airtight gasket, and a clamping protrusion is arranged on the clamping side of the airtight gasket.

5. The device for alleviating noise caused by the chimney effect of elevators in high-rise buildings according to claim 4, characterized in that: It also includes a gasket slot, which is arranged on the gap surface of the hall door, and the airtight gasket is clamped in the gasket slot through a clamping protrusion.

6. The device for alleviating noise caused by the chimney effect of elevators in high-rise buildings according to claim 5, characterized in that: A detachable slot wall is provided on one side of the gasket slot to facilitate the installation of the airtight gasket, and a disassembly switch is provided at the bottom end of the gasket slot.

7. A method for alleviating noise caused by the chimney effect of elevators in high-rise buildings, characterized in that: The following steps are involved: S01. Install a gasket slot on the gap surface of the two elevator hall doors on the closed side, and clamp the airtight gasket in the gasket slot, so that the airtight gaskets can be squeezed and deformed when the elevator hall door is closed, blocking the original gap in the middle of the hall door and enhancing airtightness; S02. Install a door panel windshield screen longitudinally on the front panel of the hall door panel away from the closing side to reduce the flow rate and flow velocity of the airflow; S03. Door frame windshields are installed on both sides and the top of the door frame. The door frame windshields can cooperate with the door panel windshields to form a double barrier.

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